US3236547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded joint
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-08-14
•
Granted: 1966-02-22
•
Expires: 1982-08-14
Abstract
No abstract record available.
Inventors
- 👤 Perry J Rieppel
- 👤 Glenn E Faulkner
- 👤 Jerome W Nelson
- 👤 Harry C Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:34
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; B; B23; B23K; B23K33/00; B23K33/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AS AN ARTICLE OF MANUFACTURE, A PAIR OF METAL PIPE SECTIONS OF ESSENTIALLY SIMILAR DIAMETERS AND WALL THICKNESS, JOINED BY FUSED WELDMENT HAVING A RELATIVELY WIDE WELD CROSS SECTION AT THE MIDDLE OF THE WALL THICKNESS, A FLARED CROSS SECTION AT THE INNER WALL, AND A NARROWER CROSS SECTION THAN EITHER THE MIDDLE OR THE FLARED CROSS-
Claim 2
Dependent Claim
57 words
AS AN ARTICLE OF MANUFACTURE, A PAIR OF METAL PIPE SECTIONS OF ESSENTIALLY SIMILAR DIAMETERS AND WALL THICKNESS, JOINED BY FUSED WELDMENT HAVING A RELATIVELY WIDE WELD CROSS SECTION AT THE MIDDLE OF THE WALL THICKNESS, A FLARED CROSS SECTION AT THE INNER WALL, AND A NARROWER CROSS SECTION THAN EITHER THE MIDDLE OR THE FLARED CROSS-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |